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Description
  • APPLICATION: Commercial HVAC - Evaporator / Refrigerated Display Cases / Cold Rooms / Environmental Chambers / Specialty Applications
  • SIGNAL OUTPUT: Relay: 100-240 VAC , 3A ind/250 V, 22-28 VDC, 250 mA Digital Output with Ground (Not Currently Used)
  • SIGNAL INPUT: Digital: 0-5 VDC Maximum Range (Interface to Dry Contact or Open Collector), Analog: 4 Temperature Sensors- 2 Kohm (*3 Kohm Optional), 1 Pressure Transducer .5-4.5 VR
  • CONTROLLER TYPE: Stand Alone Controller- With Display
  • INPUT VOLTAGE (VAC): 20-26 VAC
  • INPUT VOLTAGE (VDC): 22-26.6 VDC; Class II Input
  • COMMUNICATION PORT: RS 485, Modbus
  • INDICATOR TYPE: LED- Red, Power
  • PRESSURE RANGE (PSIG): N/A
  • DISPLAY TYPE: Digital LED- Red, 7 Segment, 4 Digit
  • WIRING: Screw Terminal
  • MINIMUM WORKING TEMPERATURE (F): N/A
  • OPERATING HUMIDITY: 0-95% Relative Humidity (Non- Condensing)
  • NUMBER OF OUTPUTS: 2
  • NUMBER OF INPUTS: 5
  • MOUNTING: DIN Rail- EN 50 022
  • MINIMUM OPERATING TEMPERATURE (F): -40°
  • MAXIMUM OPERATING TEMPERATURE (F): 158°
  • LENGTH (INCH): N/A
  • KEYPAD/USER INTERFACE OPTION: Optical Encoder (SELECT knob)
  • ENCLOSURE: PC- Light Gray

The Superheat control provides true pressure/temperature superheat control via EEV utilizing Sporlan’s unique control algorithms, while the subcool control replaces mechanical subcooling that combines liquid temperature control and minimum superheat control. The temperature and pressure controls allow precise control of air temperature and pressure using electric valves (SDR and CDS).

The Kelvin II controller line boasts both integrated and remote display options, Modbus® (via RS485) networking, Auto PID and simple setup and operation.

Features:
Superheat Control
  • True pressure / temperature stand-alone superheat controller via EEV control
  • Remote access via Modbus
  • Pumpdown mode via dry contact input
  • Manual valve positioning
  • Energy efficient system operation though more accurate valve control
  • One dial for setting all parameters
  • Optional room temperature control
  • 4-digit / 7-segment LED display (“SD” model)
  • OEM version available without display (“s” model)
  • Optional remote display unit
  • Optional display networking for 2-valve control
  • Evaporator outlet temperature input
  • Room temperature input
  • One pressure input
  • One digital input (for external switch or relay)
  • One auxiliary temperature input
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Manuals (1)
Specs
Application:

Pressure Control

Temperature Control

Voltage:

24 VAC/VDC

Wiring:

Screw Terminals

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